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DE Patent: DE-64,971
Ein Strömungsventil für Gasund und Petroleummaschinen
A Flow Valve for Gas and Petroleum
Patentee:
Johannes Spiel - Berlin, Germany

USPTO Classifications:

Tool Categories:
propulsion and energy : internal combustion engines : internal combustion engine valves

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Feb. 24, 1892

Patent Pictures:
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"Vintage Machinery" entry for A. Shirlaw & Co.

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